The use of PI-algorithm for high-speed electric rolling stock automatic control system

Abstract

The article is devoted to analysis of automatic control systems used to optimize current collection on high-speed railway electric rolling stock. A classification of automatic control systems has been developed. The use of automatic control systems that change the pantograph static force can significantly improve the quality of the current collection. However, their use changes the compression of the elastic elements of the panhead suspension, which can ultimately lead to its complete compression and breakaways. To solve this problem, authors propose using intra-spring pneumatic elements in panhead suspension. The automatic control system must simultaneously control the pantograph static force and the panhead suspension static characteristics. The authors proposed and described an automatic control system of the pantograph contact force and the panhead suspension static characteristics. To test the prospects of the proposed automatic control system, a three-mass mathematical model of a pantograph equipped with intra-spring pneumatic elements in panhead suspension has been developed and implemented in the MATLAB Simulink software package. The obtained results indicate the possibility of using intra-spring pneumatic elements in panhead suspension when using an automatic control system. It allows you to avoid vertical impacts causing a sharp increase in contact force and breakaways of the panhead.